Enhanced UV stability of N-halamine-immobilized Fe₃O₄@SiO₂@TiO₂ nanoparticles: synthesis, characteristics and antibacterial property

Abstract

Recycling of N-halamine-modified Fe3O4@SiO2@TiO2 antibacterial materials with UV stability.

Green and Facile Synthesis of Porous SiO2@C Adsorbents from Rice Husk: Preparation, Characterization, and Their Application in Removal of Reactive Red 120 in Aqueous Solution

“…The peak at 786 cm –1 was considered the symmetric stretching vibration of Si–O–Si, and the band with a peak at 945 cm –1 was ascribed to the transverse optical asymmetric stretching vibration of the Si–O–Si bond or/and Si–O–C units, all related to amorphous SiO 2 . 46 − 48 This result was consistent with the XRD and FTIR results. From the above-mentioned characterizations, it could be suggested that the combination of fast annealing and quenching successfully produced the SiO 2 /C material with a highly porous structure.…”

Accurate experimental characterization of the labile N–Cl bond inN-chloro-N′-(p-fluorophenyl)-benzamidine crystal at 17.5 K

“…13 An early ab initio study 15 showed that the N–Cl bond is rather weak, and a more recent high-level quantum chemical study 16 highlights the effect of substituents on the strength of N–Cl bond dissociation energy. N–Cl bonds in N -halamine-based materials are not stable under UV light irradiation, 17 and a reaction mechanism in which the N–Cl bond is cleaved by UV has been proposed for the transformation reaction of the micropollutant atenolol. 18 To slow down the dissociation of the N–Cl bond in NCLBA, we performed the experiment at a very low temperature of 17.5 K, extracting a high-quality charge density distribution from the high-resolution diffraction pattern.…”

Preparation of Magnetic Nano-Catalyst Containing Schiff Base Unit and Its Application in the Chemical Fixation of CO2 into Cyclic Carbonates

“…Magnetic Fe 3 O 4 particles were prepared using the co-precipitation method [32]. FeCl 3 • 6H 2 O (8.1 g, 30 mmol) and FeCl 2 • 4H 2 O (3.4 g, 17 mmol) were added to a 250 mL round-bottom flask containing 100 mL distilled water.…”